Under the sea ice during the Arctic’s pitch-black polar night, cells power photosynthesis on the lowest light levels ever ...

A California startup wants to beam extra sunlight to Earth orbiting mirrors, but some are skeptical about whether the physics ...

Wind chill readings will range from -15 to -25 degrees. Actual air temperatures Sunday night will dip to a low around -2, while highs Monday afternoon will peak toward 10 degrees. However ...

RELATED: Everything you need to know about the polar vortex bringing extreme cold ... snow that will let up Sunday and return Sunday night. Barjenbruch said people working outdoors this weekend ...

but temperatures will remain below freezing through Monday night. RELATED: Everything you need to know about the polar vortex bringing extreme cold to Colorado A high of 14 was forecast Saturday ...